Garage-door opener



Dec. 27, 1927. 1,653,862 A M. J. LEWIS GARAGE DOOR OPENER 4 Filed April 5, 1923 2 Sheets-Sheet l f7. J. e1/)zh Dec. 27, 1927.

M. J. LEWIS GARAGE DOOR OPENER Filed April 5, 1925 2 Sheats-Lheft2 @www werden Patented Dec. 27, 1927.

`Mensen J. LnWIsQoF Messiaen, omo.`

v GARAGEDOOR OPENER.

Application ined lapinv 3, 1923. serial No. 629,601.

This inventionrelatesito door openers and more particularly to a power actuated device adapted for opening or closing heavy doors such as are used upon garages and.

similar buildings.

The objects ot' the invention are to provide a motor operateddevice arranged to open and `closer the doors, means beingprovided orautomatically stopping the motor when the doors reach the ullyopen or fully closed position, a reversing switch being automatically operated by the motorto automatically reverse the motor with each operation oi'z the mechanism; to provide means' f for holding the'doors locked in the ,closed position; and to `generally improve andl simplify devices of this character. p

Theabove and other objects may be attained by constructing the device in the manner illustrated inthe accompanying drawings, in which- Figure 1 is a plan view of aV pairyof swinging doors provided with a door opening devi ce embodying the invention;

Fig. 2, a section on the line 2 2, Fig. 1; Fig. 3, `a section on the line `3-3, Fig. 1; Fig. 4, a section on 7the line .4p-4, Fig. Fig. 5, a plan view of the switch; p Fig.` 6, a tragmentary perspective view oli' a portion oit the switch operating mechanism; and Fig. 7 a detail perspective view of another portion of the switch operating mechanism.

Similar numerals refer to similar y parts throughout the drawings.

A pair ot hinged or swinging doors 1 1,

are shown to normally close an entrance. `A

motor 2, is mounted above the doors, pre-ter` ably near one side of the door opening, upon a'bracket 3, the shatt 4, thereof having a pinion 5 lined thereon and meshinglwith a gear 6 fined upon a shaft which is Jour naled through the gear housing S.

A gear 9 is hired upon the long shaft 10 and meshes with the gear 7, said shaft 10 being journaled throughthe gear housing 8 at one end and through the bracket 11 at they other end.

A bevel gear 12 is lined upon each end of the shait 10 and meshes with a bevel gear 13 fixed upon the thread shaft 14, which is` journaled at opposite ends in the bearings 15 and 16 depending from the brackets 3 and 11.

. A nut 17 is mounted upon each of the threaded shafts 14 and the bifurcated tion 13 of a link 19 is pivoted thereto asat 20,ithe opposite end ot'each link being piv'-, oted to the ears 21 upon the adjacent door 1as by a pin-`22 which may be provided with a pull cham 23 tor removing the pivot pin when desired. p f

The switch 'for reversing the motor jis mounted` upon an insulation block 24 `carried upon a bracket 25 which may be supported from the gear housing 8. One line wire 26 is connected to the threeway switch 27 placed in a convenient location tobe manually operated and the other line wire 28 is connected to the terminal 29 upon the block 24. i y

A terminal 3Q is mounted upon the block 24 .and extends above and in vertical alignment with the terminal 29 and is connected by the wire 31 with the three-wayswitch, the wire 32 connecting the three wayfswitch with a terminal 34 similar tothe term'nal 30.

`A` terminal 35, similar to the terminal 29, is located beneath the terminal 34 and is connected by a bus-bar orthe like, as indi-v cated at 36 with the terminal37, similarv terminal 39 and connected as bythe bus-bar o 41 with the terminal 34.

`A pair of terminals 42 and 43 are located upon the same side of the block with the term'nal 39 and are ot' a construction similar'y to the terminal 39, excepting that each is provided near its lower end with a `Contact lip 44 tor engagement with the switch blade as will be laterdescribed. The ter1ninals39, 40, 42 and 43 are connected by the wires 45l with themotor in .thefusualmanner topr vide for reversing tliemotor when the switch is reversed.V A

. An inverted, U-shaped` bracket 46 is mounted upon the switch block between the two sets et terminals above described, and is provided with the depending arms 47 in which are journaled the end portions of the Vswitch arm 48 which is provided with a `doorn` reach the'olosed position.

top ol the bracket 46.11 longitudinal slot 54 being provided inthe bruelket'; to perniit movenientiof the lever. p M i Three switch blinden 55 are liXed atwtheir central portions upon switch ar1n"-48 and `provided with the biturcated extremities 56 for engagement with the wnriousyter-` minals. i

A threaded shaft concentrically mounted upon the `shat't 7 and lined thereto in any suitable nianner,` said screw thread ed shaftextending out\`vard toward the leveraZend having fi nut 5S mounted thereon and provided with areduced, threaded neele 59" upon` ivhich are inounted a pair ot adjusting" nuts (50,* between which is clamped the depending arin (l. ot theislotted bar "(52, which is provided Wi th the longitudinal slot (S3 through which the yewitrh leren extends. i I j Aesinning "the`;1: arts to he in tl'ie position shown in *Fi .""l, with the doors Closed. in order tosl l the inotorto open the dooie, the three-Way Switchr 2"? is nianiuilliy"oper-` 1" ated, "completing the circuit to the `nnotor andetarting theniotor to operate in, a diretl`` tion to "rot-ete the*` shaft l() `and through it the `screw threaded `shaii'tS l14: in a direction' to move the nut lTforwni-d or outward upon thescrewthreaded fshatt and through the links"`19 toloree the doors:` open.

,The screw threededehaft 57 will', during` thier operation, bef rotated ina direction to move the nut58 toward the outer endl ol the saine. `carrying `with it the Slotted har 69.

Thisbar will Swingthe siifitchlever 52 upon its pivot untilthe sainefpaeses over the cen=` ter, when thespring-() will Snap the switcharni 48 into the-opposite position, Stopping `the motor as the i doors reach s the vfully openedposition.p` l p up 3 lilith the partein this position7 the doorn nui)y be closed byagain operating the three-4 s Witch, the reversing 'Switch being inthe se` position,` causing thewnotoi` to operatoin thc"leifeizeirdirection,` nimfingtgv the nuts 17 backnfurd upon the threaded' shafts ll to closethe doors. p p "At the sinne time, thenut 5S n'illl beinoved 1 backward upon the `threaded slintt 5T `und the her (i2 thereon will `operate to throw the siriteh leyei," 52 baekfto thelirst position,` ae shown in Figli, Stoppingthenotor` as the l't will be Seen that with the doors in the cloned position;` it `will he impossible ior them to be opened from the outside by an `inoived `longitaidinalljy' upon the threaded shafts le." exceptingihy the rotation ot' the Shafts. which, oi course, cannot he aecomplished `fronti the outside.

1. A door operating mechanism including in combination with a swinging door, ln. motoig a threaded `eha't't- `located `at *right angles `to" the normal plane ot the door, `a 1 nut uponA the Shaft, u1` link pivotelly7 eonnecting the `nut andthe door means operatively connecting the inotor with the threaded shafty annick throw rei .reing and stopping switch.; a" threaded shalt operated by the" motor, anni; upon the` ehiftgil slotted har fixed to the nut and un operating lever upon the Switch*engaging the slotted bei' for autoniatienlly` operating' the switch as the` position. f

door operating meclinninln ineluding in etnnhination with `a swinging door, a motor, n" threaded elia 't journalcd adjacent to the inot ii,`gmi1i11g operatirely`connect` ing the. Shaft to the inotorga not inoilinted upon the `shajl't" and held againstrotatioin a link pivotelly connected .at` `oppoeite oudste the nut and to the` swingingdoor, a threaded shaft arranged to he rotatetfl hy theniotor, afnutupon said second threnrfledI` shaft provided "with la slotted erin, `and a quick throw` `rovere-ingi` and stopping;sn'iteh llaying an operating lever engaggingtheY lot in Said arn'r und arranged to control the motor. p 4 p 3. QA door tnieniinrr `niecinmiern iijnzluding,

iii"eonibiiuition "with a n'i'oiuble door,"` :n

led shuft,` a` nut upon "the threaded lshatt," a link coilneeting the `nut and thewdoor, means operatively conneetiin:` the motor' with the tln'eaded Shafte a uniek thi-onv reversing and stopping en'itth,` :1

threaded Shaft operated hA upon` the last named shattr a slotted har Iixed to the but, and an opi-:intlnl;I lever ullion the Switch engaging. the slotted har 'for autel nintieally operating; the entiteit an thedoor reaeheethe gtulljifopeued or fully "eloned posi tion. f j In testimony`that l elailn the ulyuive,` l have hereunto Subscribed niyuaine.

`Monoiin Lianne. l

(iii

T ii

4door reaches the tullyopencd or fully eloed alti motor, a nut i 

